National Geographic grantee Federico Fanti and his research team have unearthed a sea-dwelling crocodylomorph (a teleosaurid) skeleton in southern Tunisia, in the Sahara desert: Machimosaurus rex. It is the world’s largest marine crocodyliform, and was previously unknown to science. It’s length is estimated at more than 30 feet (9.14 meters). The giant was probably weighed three tons. The rendering of Machimosaurus rex by Davide Bonadonna of National Geographic.